Name: Understanding Cyclic Process
Uploaded: 2019-07-19
Duration: 3 min 19 s
Description: Explore the cyclic process in detail with the derivation of the condition proving that the change in the internal energy of a system after completion of a cy...

Question

Explain clearly difference between isothermal and adiabatic processes. Give example of each.

Accepted Answer

Difference between isothermal and adiabatic processes $:$

Following are the differences between isothermal and adiabatic processes.

Isothermal Adiabatic

(i) Transfer of heat occurs in a given volume. (i) No transfer of heat occurs.

(ii) The pressure is more at a given volume. (ii) The pressure is less at a given volume.

(iii) The temperature is constant. (iii) The temperature is changed due to initial system variations.

(iv) Heat can be added or released to the system in order to keep the same temperature. (iv) There is no addition of heat nor heat is released because maintaining constant temperature does not matter here.

(v) The transformation is slow (v) The transformation is fast.

Examples of isothermal and adiabatic changes $:$

(i) melting: During melting temperature does not change. But internal energy changes.

(ii) Boiling: This also takes place at constant temperature and is an isothermal process.

Example of adiabatic changes $:$

(i) When a bicycle tube burst suddenly, the air of the tube expands rapidly into the atmosphere and becomes cold.

When air expands rapidly work is done by the gas its internal energy decreases, and it becomes cold.

(ii) Propagation of sound waves in the air and other gases is also adiabatic.

Explain clearly difference between isothermal and adiabatic processes. Give example of each.

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